High isolation electronic multiple pole multiple throw switch
First Claim
1. A switching device comprising:
- at least five terminals, the terminals including at least two poles and at least three throws;
a plurality of series switches, a series switch count equaling a pole count M multiplied by a throw count N, each series switch receiving a control signal, each series switch being coupled between one of the poles and one of the throws, wherein each pole is operably coupled to each throw through one of the series switches;
a plurality of means for shunting, a shunt count equaling the pole count M plus the throw count N, each means for shunting receiving plural shunt control signals;
wherein for each terminal one of the means for shunting is coupled between plural adjacent series switches for the terminal, the one of the means for shunting being a coupled means for shunting for the terminal; and
wherein for each terminal the shunt control signals for the coupled means for shunting include the control signal received by each distant series switch for the terminal.
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Abstract
A high isolation electronic multiple pole multiple throw (MPNT) switching device is formed as a ring circuit that includes plural poles, plural throws, plural series switches and plural means for shunting. Each series switch receives a control signal, and each means for shunting receives shunt control signals. In one aspect, the shunt control signals include control signals received by distant series switches. In another aspect, the shunt control signals include control signals received by adjacent series switches. In another aspect, the shunt control signals include signals complementary to signals received by adjacent series switches. In another aspect, the shunt control signals include pole DC potentials or throw DC potentials. In another aspect, a switching device may operate in multiple transmission mode or multiple input multiple output (MIMO) mode. The MPNT switching device provides low insertion loss and high isolation at a wide range of frequencies.
46 Citations
23 Claims
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1. A switching device comprising:
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at least five terminals, the terminals including at least two poles and at least three throws; a plurality of series switches, a series switch count equaling a pole count M multiplied by a throw count N, each series switch receiving a control signal, each series switch being coupled between one of the poles and one of the throws, wherein each pole is operably coupled to each throw through one of the series switches; a plurality of means for shunting, a shunt count equaling the pole count M plus the throw count N, each means for shunting receiving plural shunt control signals; wherein for each terminal one of the means for shunting is coupled between plural adjacent series switches for the terminal, the one of the means for shunting being a coupled means for shunting for the terminal; and wherein for each terminal the shunt control signals for the coupled means for shunting include the control signal received by each distant series switch for the terminal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A switching device comprising:
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at least four terminals, the terminals including at least two poles and at least two throws; a plurality of series switches, a series switch count equaling a pole count M multiplied by a throw count N, each series switch receiving a control signal, each series switch being coupled between one of the poles and one of the throws, wherein each pole is operably coupled to each throw through one of the series switches; a plurality of means for shunting, a shunt count equaling the pole count M plus the throw count N, each means for shunting receiving plural shunt control signals; wherein for each terminal one of the means for shunting is coupled between plural adjacent series switches for the terminal, the one of the means for shunting being a coupled means for shunting for the terminal; and wherein for each terminal the shunt control signals for the coupled means for shunting include; the control signal received by each adjacent series switch for the terminal;
ora signal complementary to the control signal received by each adjacent series switch for the terminal. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A switching device comprising:
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at least five terminals, the terminals including at least two poles and at least three throws; a plurality of series switches, a series switch count equaling a pole count M multiplied by a throw count N, each series switch receiving a control signal, each series switch being coupled between one of the poles and one of the throws, wherein each pole is operably coupled to each throw through one of the series switches; a plurality of means for shunting, each means for shunting receiving plural shunt control signals; wherein for each of a plurality of the terminals one of the means for shunting is coupled between plural adjacent series switches for the terminal, the one of the means for shunting being a coupled means for shunting for the terminal, the terminal with the coupled means for shunting being a shunted terminal; wherein for each shunted terminal the shunt control signals for the coupled means for shunting include; the control signal received by each distant series switch for the terminal;
orthe control signal received by each adjacent series switch for the terminal;
ora signal complementary to the control signal received by each adjacent series switch for the terminal. - View Dependent Claims (20)
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21. A switching device comprising:
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at least four terminals, the terminals including at least two poles and at least two throws, each pole having a pole DC potential, each throw having a throw DC potential; a plurality of series switches, a series switch count equaling a pole count M multiplied by a throw count N, each series switch receiving a control signal, each series switch being coupled between one of the poles and one of the throws, wherein each pole is operably coupled to each throw through one of the series switches; a plurality of means for shunting, a shunt count equaling the pole count M plus the throw count N, each means for shunting receiving at least one shunt control signals; wherein for each terminal one of the means for shunting is coupled between plural adjacent series switches for the terminal, the one of the means for shunting being a coupled means for shunting for the terminal; wherein for each pole the shunt control signals for the coupled means for shunting include the pole DC potential for each distant pole; wherein for each throw the shunt control signals for the coupled means for shunting include the throw DC potential for each distant throw. - View Dependent Claims (22, 23)
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Specification